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| Erhart, Eva; Hartl, Wilfried; Bartl, Barbara; Putz, Berta; Horak, Othmar. |
| The accumulation of heavy metals in soils is a potential risk that may keep organic farmers from using biowaste compost. As the ecological effects of metals are related to mobile fractions rather than to total contents in the soil, we measured the total (aqua regia extractable) heavy metal contents, the readily available water soluble and the potentially bioavailable LiCl-extractable fraction of soil heavy metals in a field experiment after ten years with total applications of 95, 175 and 255 t ha-1 biowaste compost (fresh matter). Total soil contents of Cd, Cr, Cu, Ni and Pb in the compost treatments were not significantly higher than in the unfertilized control. Total Zn contents increased in the treatment with the highest application rate. In... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Soil quality; Composting and manuring. |
| Ano: 2009 |
URL: http://orgprints.org/14479/1/Erhart_14479.pdf |
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